The legs of an isosceles right triangle are 11 cm long. find the length of the hypotenuse. round to the nearest tenth if necessary.

Its a squared + xb squared = c squared  so its 11 squared + 11 squared equals c squared. So I'm gonna take it down to the next step and say 11x11+ 11x11= c squared, then you end up with 121+121= c squared then you add those two and end up with 242= c squared, so then you find the square root of 242 so you should end up with 15.5 and the number goes on and on and on

25 is obviously the correct answer

Ithink if im not mistaking b is -3 but im not a 100% sude